Gas-lamp.



Patented Dec. 3|, IQOI.

YL. S. HAML QASL LAME (Apgli utiom filed: Juiy- 2A, 1901.)

2 Shasta-Shoot I.

(No Model.)

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TNESSES INVENTOR. 4%

Patented Dec. 3|, I901. W. S. HAMM.

GAS LAMP (Application filed July 24, 1901.)

2 Sheets-Sheet 2.

(No Model.)

' INVENTOR.

UNITED STATES PATENT @FFECEE.

l/VILLIAH S. HAMM, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS & \VESTLAKE COMPANY, A CORPORATION OF ILLINOIS.

GAS-LAM P.

SPECIFICATION forming part of Letters Patent N 0. 690,276, dated December 31, 1901.

Application filed July 24,1901.

To all whom it may concern.-

Be it known that 1, WILLIAM S. HAMM, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Gas-Lamps,of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to lamps, and has particular reference to that class employed for illuminating railway-cars or other vehicles, although it will be readily understood that its use is not restricted thereto and that it may be adapted to any situation where conditions favorable to its utilization exist' The object of the invention is to provide in a lamp of the character referred to for secu ring a free circulation of air about the gas-supply pipe and for preventing the heating of the gas before consumption by the heat generated by the burning gas, it being well known that certain gases, such as acetylene, require to be kept cool in order that the illuminating efficiency thereof may not be impaired.

The invention consists generally of a plurality of flame-chambers arranged in a cluster, a smoke-flue leading from each chamber and discharging through the ceiling to which the lamp is applied or into a common flue, and means for conducting the gas to the several fiame-chambersthrongh the space intermediate of such chambers and the smoke-fines.

The invention is fully illustrated in the accompanying drawings, in which Figure l is a central vertical section of the lamp, showing the manner of securing the same to a car-ceiling or other support and some of the parts being shown in full lines; and Fig. 2 is a section on the line 2 2 of Fig. 1.

The central gas-supply pipe 10 is provided at its lower end with a plurality of radiating branches 11, suitable means, such as the upwardlycurved bracket arms 12, radiating from the upper end of the supply-pipe, threaded bolts 13, projecting upwardly from the bracket-arms 12, and nuts 14 for retaining the bolts, being employed for securing the lamp to the ceiling 15 of a car or other chamber. Each of the branches 11 has a gaskey 16 and terminates in a burner 17, inclosed Serial No. 69,503. (n5 model.)

ina flame-chamber-in the present instance a globe 18-from which leads upwardly a smoke= line 19, the several fines 19 being inclined inwardly, and, passing through the ceiling of the car, discharge above the upper end of the supply pipe 10 and into a common centrallylocated flue 20, which projects through the upper car-deck 15.

The fiues 19 may be of continuous tubing, or, as illustrated'in Fig. 1, tubes 21, interposed between the ends of the flues 19 and the flue 20, may be provided, and the said tubes 21 pass between adjacent pairs of the bracketarms 12, as clearly shown in Fig. 2.

As will be observed, the supply-pipe 10 is disposed centrally with relation to the surrounding smoke-fiues 19 and is suitably spaced therefrom, so as to permit of a free circulation of air around the gas-pipe, and is preferably located within a tube 22, which serves as well to shield the same from the heat radi ating from the surrounding smoke-fines as to add to theornamentation of the lamp.

The upper ends of the fiues 19, or, as in the construct-ion illustrated, the tubes 21, may be inclosed in a casing 23, which is preferably made of metal and in the form of a bowl, the rim thereof abutting against the ceiling of the car or other chamber within which the lamp may be located. The does 19 are then supported by the casing 23, which latter is provided with nipples 24 to receive the ends of the tubes 21.

The casing 23 is freely perforated at the sides, as at 25, to provide for an uninterrupted circulation of air therethrough and around the upper end of the supply pipe 10, extending therein,and communication with the outer atmosphere is established by means of a tube 26, surrounding the fine 20 and passing through the ceiling and upper deck of the car.

Air for supporting combustion within the flame-chambers may be supplied in the usalu manner-that is to say, through apertures in the globe-supporting disksand air may also enter between the upper ends of the globes and the corrugated bottoms of the smokebells.

One of the bolts for securing. the lamp to the car-deck or other support and its companion bracket-arm may be provided with a passage 27 for conducting the gas from the service-pipe (not shown) to the lamp-supply pipe 10.

In the drawings I have illustrated a lamp or chandelier with four sets of flame-chambers and smoke-fines; but it will be obvious that the number is immaterial and may be varied as desired. The construction shown and described provides for a depending gassupply pipe surrounded by but spaced from independent smoke-fines leading from the flame-chambers, so that it is free from the in-- fluence of the heat radiating from the smokefiues and ascending from the flame-chambers, and for thorough circulation of the air around the gas-pipe, whereby the gas is kept cool, so as to permit the best results to be obtained therefrom in its illuminating power and to prevent it from gumming up the pipes.

I claim as my invention 1. In a deck or ceiling gas-lamp, in combination, a plurality of flame-chambers arranged in a cluster, a smoke-flue leading from each chamber, and means for leading gas to the several flame-chambers through the-space intermediate of such chambers, the said conveyingmeans being entirely outside of and spaced apart from the fines.

2. Ina deck or ceiling gaslamp, in combination, a plurality of flame-chambers arranged in a cluster, a fine leading through the ceiling to which the lamp is applied, a smokefiue leading from each flame-chamber and discharging into the first-mentioned flue, and a gas-pipe communicating with the several flame-chambers and being wholly outside of the smoke-fines.

3. Inagas-lamp, in combination, a plurality of flame-chambers arranged in a cluster, a supply-pipe, branches for conducting gas to the flame-chambers, a smoke-flue leading from each chamber and spaced from the supply-pipe, and a common -flue located above the supply-pipe and into which the several smoke-fines discharge.

4:. In a gas-lamp, in combination, a plurality of flame-chambers arranged in a cluster, a supply-pipe, branches for conducting gasto the flame-chambers, upwardly-extending bracket-arms radiating 'from the supply-pipe for'securing the lamp to a support, a flue located above the supply-pipe, and a smokeflue for each chamber passing between adjacent pairs of bracket-arms and discharging into the fine.

5. In a gas-lamp, in combination, a pluralityoffiame-chambers,asupply-pipe,branches for conducting gas to the flame-chambers,

radial bracket-arm's extending upwardly from the upper end of the supply-pipe, bolts pro jecting from the bracket-arms, and nuts for securing the bolts to a support, one of the said bolts and its companion bracket-arm having a passage for leading the gas to the supply-pipe.

6. In agas-lamp, in combination, a plurality of flame-chambers arranged in a cluster, a supply-pipe, branches for conducting gas to the flame-chambers, smoke-flues leading from the flame-chambers and spaced from and about the supply-pipe, a common fine located above the supply-pipe and into which the smoke-fines discharge,bracket-arms radiating from the upper end of the supply-pipe and provided With bolts extendingupwardly and at the sides of the smoke-fiues,.and nuts for securing the boltsto a support, and one of the said bolts and its companion bracketarms having a passage for leading thegas to the supply-pipe.

7. In a gas-lamp, in combination, a central depending supplypipe, a plurality offlamechambers'arranged in a cluster,branchesradiating from the supply-pipe and conducting gas to the flame-chambers, and an independent smoke flue leading upwardly and inwardly from each flame-chamber, the several fines being spaced from and about thesupply-pipe and discharging above. the. upper end of the same.

8. In adeck or ceiling lamp, in combination, a plurality of flame-chambers arranged in a cluster, a smoke-flue leading from each of such chambers through the ceiling to which the lamp is applied, and a gas-pipe leading. to each flame-chamber, and'being entirelyoutside of and spaced apart from the tines.

9. In a deck or ceiling lamp, in c0mbina= tion, a plurality of fiame-chambers arranged in a cluster, a smoke-flue leading from each ofsuch chambers through the ceiling to which the lamp isapplied, andagas-pipe leading to each flame-chamber, and being entirely outside of the fiues.

10. In a gas-lamp, in combination, a plural ity of flame-chambers,-a supply-pipe,branches leading to the flame-chambers, and an independent fl'ue leading upwardly from each flame-chamber, the several flues being spaced from and about the supply-pipe and discharg= ing above the upper end of the same.

WILLIAM S. HA MM.

Witnesses:

H. G. TURNEY, ARTHUR B. SEIBOLD. 

